Refrigerent R-134a at 140 kPa and minus 10 degC is comressed by adiabatic 0.7 kW compressor to an exit state of 700 kPa and 50degC. Neglecting changes in kenetic and potential energies determine:
a) The isentropic efficienciey of the compressor.
b) The volume flow rate of the refrigerent at the inlet in L/min.